Frame Relay traffic management

Traffic management of Fpipes is supported for the 7750 SR only and is achieved through the application of ingress and egress QoS policies to SAPs like other Frame Relay SAPs. No queuing occurs on the MDA; all queuing, policing, and shaping occurs on the IOM and, therefore, traffic management is forwarding-class-aware. Forwarding classes may be determined by inspecting the DSCP marking of contained IP packets, for example, and this determines both the queuing and the EXP bit setting of packets on an Fpipe.